Formula · 6.9

Brand · 5.9

Klorane · adenosine + caffeine · France

Klorane Adenosine Hair Growth Serum

Klorane Adenosine Hair Growth Serum
6.9

LabReadAI label score

How the score is calculated
  • Actives and evidence0.4No proven effect when applied: cinchona bark extract
  • Completeness for the purpose1.0For “hair shedding (topical)” — 100 %; niacinamide (vitamin b3); could be added without conflict: niacinamide (vitamin b3); a narrow formula for one purpose
  • Tolerance0.8Debatable ingredient groups: denatured alcohol, fragrance and its allergens (skin test positive in 13 of 100 tested)
  • adults
  • children
  • babies
  • colour-treated hair
  • pregnancyno studies in pregnancy — discuss with a doctor
  • sensitive skinirritation possible
  • atopic skinfragrance is a common trigger
  • dry skinmay dry
Free from:
  • sulfates (SLS/SLES) · by the listthe list has no ingredient of the “ammonium laureth sulfate (ALES), ammonium lauryl sulfate (ALS), sodium coco-sulfate, sodium laureth sulfate (SLES), sodium lauryl sulfate (SLS), sodium myreth sulfate, TEA-lauryl sulfate” group — a cleansing surfactant from the sulfate family but with an ethoxylated chain: it cleanses more gently than lauryl sulfate. Still not for those looking for a sulfate-free product.
  • formaldehyde releasers · by the listthe list has no ingredient of the “formaldehyde releasers” group — preservatives that slowly release formaldehyde; allowed at low levels but a frequent cause of contact allergy
  • isothiazolinones (MIT/MCI) · by the listthe list has no ingredient of the “isothiazolinone preservatives (MIT/MCI)” group — preservatives; banned in EU leave-on products and limited in rinse-off (0.0015%) — a frequent cause of contact allergy
  • parabens · by the listthe list has no ingredient of the “parabens” group — preservatives; methyl- and ethylparaben are recognised as safe at permitted levels, propyl- and butyl- are limited by the EU to 0.14 %; a frequent buyer question rather than proven harm
  • mineral oils and petrolatum · by the listthe list has no ingredient of the “petrolatum and mineral oils” group — purified cosmetic-grade petroleum products: form a protective barrier film; safety is established, a preference question; 0–2 of 5 (depends on the raw-material source), cosmetic white oil per DiNardo (2005) is non-comedogenic
  • soap · by the listthe list has no ingredient of the “potassium soap (potassium cocoate), plant soap base (sodium palmate, sodium cocoate), tallow soap base (sodium tallowate)” group — liquid soap: fatty acids boiled with alkali. It cleanses well, but its acidity is around 9-10 against 5 for skin, which is why it often leaves tightness. The product is rinsed off, so the question is tolerance.
  • silicones · by the listthe list has no ingredient of the “silicones” group — form a smooth film and shine; inert and not absorbed — a preference question, not a safety one
  • gelatin in the coating · by the listthe list has no ingredient of the “vegetarian coating” group — a plant-based tablet coating instead of gelatin; it keeps moisture out and makes swallowing easier
  • toning dyes · by the listthe list has no ingredient of the “violet toning dyes” group — direct dyes that settle on the hair surface and cancel the yellow cast of blonde; they wash out in 1–3 washes and leave a lilac tint if left too long; HC Blue 2 and Disperse Violet 1 are known contact allergens of hair dyes
  • tar · by the listthe list has no ingredient of the “wood (birch) tar” group — a traditional remedy for dandruff and itching with a sharp smell; it reduces flaking, but can irritate a sensitive scalp and dries the hair
What for: Topical products against shedding work weakly: only minoxidil is proven (a medicine we do not score); among cosmetics rosemary oil has moderate data, caffeine weak. The cause of shedding is found by tests: iron, thyroid, vitamin D.
When:
  • leave-on
  • morning
  • daytime
  • evening
any time, can be applied often
When to expect an effect: soothing — days; barrier — 2–4 weeks; wrinkles — 8 weeks, a modest effect; puffiness — within an hour, briefly; dark circles — no effect to expect; do not expect a separate effect from quinine; judge shedding no earlier than after 8 weeks
What is normal: nothing special — well tolerated; losing 50–100 hairs a day is normal with or without any product

Ingredients — 16 components · 4 work

What works: 4 of 16 ingredients: panthenol, adenosine, caffeine and 1 more. Topical products against shedding work weakly: only minoxidil is proven (a medicine we do not score); among cosmetics rosemary oil has moderate data, caffeine weak. The cause of shedding is found by tests: iron, thyroid, vitamin D.

Strengths: completeness for the purpose

What lowers the score: actives and evidence: no proven effect when applied: cinchona bark extract; tolerance: debatable ingredient groups: denatured alcohol, fragrance and its allergens

Questions: denatured alcohol: denatured alcohol, alcohol — evaporates fast and degreases; frequent contact can dry the skin — a tolerance question, not a regulatory one; does not clog pores; fragrance and its allergens: fragrance — the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works

  • WATER (AQUA)* base: coating, fillers · water — the solvent and base; listed first because there is more of it than anything else; in supplements — part of the capsule shell
  • ALCOHOL DENAT.* questions · evaporates fast and degreases; frequent contact can dry the skin — a tolerance question, not a regulatory one; does not clog pores
  • GLYCERIN* base: coating, fillers · a humectant: coats the tablet, holds moisture in creams and shampoos; does not clog pores
  • PENTYLENE GLYCOL* base: coating, fillers · humectants and solvents — hold water and help actives dissolve
  • PANTHENOL works · the active ingredient — what the product is for; form: panthenol
  • CINCHONA SUCCIRUBRA BARK EXTRACT* works · the active ingredient — what the product is for; form: cinchona bark extract
  • ADENOSINE* works · the active ingredient — what the product is for; form: adenosine
  • CAFFEINE works · the active ingredient — what the product is for; form: caffeine
  • HYDROLYZED VEGETABLE PROTEIN* base: coating, fillers · proteins cut into short pieces: they settle on hair and skin as a film and make hair smooth and denser to the touch.
  • ALCOHOL* questions · evaporates fast and degreases; frequent contact can dry the skin — a tolerance question, not a regulatory one; does not clog pores
  • AMMONIUM ACRYLOYLDIMETHYLTAURATE/VP COPOLYMER base: coating, fillers · makes the product thicker or thinner
  • CITRIC ACID* base: coating, fillers · acidity regulator
  • FRAGRANCE (PARFUM)* questions · the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works
  • OLETH-10 base: coating, fillers · an ethoxylated emulsifier; the longer the PEG chain across oleth-3, 5, 10, 20, the lower the comedogenicity; rarely clogs pores in leave-on face products
  • PANTOLACTONE base: coating, fillers · draws water in and holds it in the upper layer of the skin
  • SODIUM BENZOATE base: coating, fillers · a preservative both in cosmetics and in supplements: a salt of benzoic acid that works in an acidic medium. Permitted as food additive E211 and in cosmetics up to 0.5 %.
  • TOCOPHEROL base: coating, fillers · vitamin E at hundredths of a percent: keeps the oils of the formula (a cream or a capsule fill) from going rancid; at that share it protects the product, it is not vitamin E as an active

Klorane Adenosine Hair Growth Serum is a product whose active ingredient is panthenol (pro-vitamin b5) + adenosine + caffeine + cinchona bark extract. The concentration is not declared, but the active sits above the 1 % line in the list — a working share is likely. The effect is moderately supported: panthenol (pro-vitamin b5). There is little evidence of effect: adenosine, caffeine. There is no evidence of effect: cinchona bark extract. The formula has 16 ingredients, 4 of which do the work; the rest is the formula base. Worth noting: ALCOHOL DENAT.*, ALCOHOL* (evaporates fast and degreases; frequent contact can dry the skin — a tolerance question, not a regulatory one; does not clog pores); FRAGRANCE (PARFUM)* (the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works). Topical products against shedding work weakly: only minoxidil is proven (a medicine we do not score); among cosmetics rosemary oil has moderate data, caffeine weak. The cause of shedding is found by tests: iron, thyroid, vitamin D. By the list, no sulfates (SLS/SLES), formaldehyde releasers, isothiazolinones (MIT/MCI), parabens, mineral oils and petrolatum, soap, silicones, gelatin in the coating, toning dyes, tar. Suitable for: adults, children, babies, colour-treated hair. pregnancy, sensitive skin, atopic skin, dry skin — ask a doctor. fragrance allergy — not without a doctor. Use: any time, can be applied often. When to expect an effect: soothing — days; barrier — 2–4 weeks. Label score — 6.9 out of 10 (no proven effect when applied: cinchona bark extract; debatable ingredient groups: denatured alcohol, fragrance and its allergens (skin test positive in 13 of 100 tested)). Per the pack: for external use, apply to the scalp, avoid contact with the eyes. A restatement of the label, not an assessment.

Who it does not suit

  • fragrance allergyrisk of reaction

When to stop: itching, rash — stop

Per the maker's leaflet: Per the pack: for external use, apply to the scalp, avoid contact with the eyes. A restatement of the label, not an assessment.

Is this product right for your hair?

The score describes the formula, not your hair: a sulfate shampoo suits an oily scalp and fails a dry, sensitive one. Tell us about your hair, scalp and the problem — shedding, dandruff, oiliness, dryness — and we will build a routine and say whether this product suits you.

Hair care matchDecode my tests

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